H. Ayakawa

Development of an improved multifunction high speed operating current differential relay for transmission line protection

H. Ito, I. Shuto, H. Ayakawa, 2001 .

New protection method for HVDC lines including cables

H. Ayakawa, M. Sanpei, H. Takeda, 1995 .

Improvement of internal charging current compensation for transmission line differential protection

H. Ayakawa, M. Yamaura, Y. Kurosawa, 1997 .